Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Normal-pressure tool changing cutterhead with freezing function

A technology of atmospheric pressure and cutter head, which is applied in mining equipment, earthwork drilling, tunnels, etc., can solve the problems of needing to open the warehouse, the cutter head cannot be excavated, and the freezing cycle of the frozen tool changing cutter head is long, so as to reduce the construction cost , reduce negative impact, improve construction efficiency and equipment safety effect

Pending Publication Date: 2019-07-09
CHINA RAILWAY CONSTR HEAVY IND
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The freezing cycle of the frozen tool change cutter is long, and it cannot be used as a conventional tool change method when frequent tool changes are required under harsh geological conditions; Excavation, need to open warehouse operations and other issues

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Normal-pressure tool changing cutterhead with freezing function
  • Normal-pressure tool changing cutterhead with freezing function
  • Normal-pressure tool changing cutterhead with freezing function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The embodiment of the present invention discloses a normal-pressure tool changing cutter head with a freezing function, which can take into account the frequent replacement of tools and the opening and changing of tools or maintenance work under specific conditions.

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] see Figure 1-Figure 2 , figure 1 It is a front view of the layout of the freezing pipeline of the normal pressure tool change cutter head with freezing function according to a spe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a constant-pressure tool changing cutterhead with a freezing function. The constant-pressure tool changing cutterhead comprises a circular cutterhead body; the circular cutterhead body comprises a plurality of normal-pressure tool changing radial arms and a plurality of auxiliary beams; the plurality of normal-pressure tool changing radial arms are respectively connected with the plurality of auxiliary beams, and a plurality of normal-pressure tool changing tools are arranged on the normal-pressure tool changing radial arms; refrigerating pipelines are arranged on the lateral side faces of the normal-pressure tool changing radial arms, inner panels, the outer surfaces of the panels or the interiors of the panels, the refrigerating pipelines are provided with first inlets and outlets used for injecting or discharging low-temperature cooling liquid, heat insulation pipelines are arranged between the refrigerating pipelines and a cutterhead flange, and the heat insulation pipelines are provided with second inlets and outlets used for injecting or discharging heat insulation liquid. By means of the normal-pressure tool changing cutterhead with the freezing function, the normal-pressure tool changing cutterhead can be adopted for frequently changing tools, a tunnel face can be frozen by arranging the freezing pipelines, and it can be guaranteed that the cutterhead enters an excavation bin to work under special conditions. The construction efficiency and the equipment safety are improved, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of roadheading machines, and more specifically relates to an atmospheric pressure tool changing cutter head with a freezing function. Background technique [0002] Tunnel boring machine is a kind of special construction machinery for tunnel excavation. It has the functions of excavating soil, transporting muck, and lining pipelines. It has been widely used in tunnel projects such as subways, railways, highways, coal mines, and water conservancy and hydropower. The cutting tool is the main tool used by the roadheader to excavate the tunnel face. Once the cutting tool is worn or damaged, it must be replaced in time, otherwise it will seriously affect the construction efficiency and even damage the cutting head. [0003] At present, there are two relatively advanced tool change methods on the market: frozen tool change cutter head and atmospheric pressure tool change cutter head. The frozen tool change cutter ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/11E21D9/00
CPCE21D9/11E21D9/001
Inventor 程永亮彭正阳暨智勇任勇邓汝群薛静罗丹
Owner CHINA RAILWAY CONSTR HEAVY IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com